val4symb {pgirmess} | R Documentation |
Centres a numerical vector on a parameter position and provides absolute values and colors according to negative and positive values
val4symb(x, FUN=mean, col = c("blue", "red"),...)
x |
a numerical vector |
FUN |
a function computing a position parameter, typically mean or median . Default to mean |
col |
a character vector of 2 values, default=c("blue","red"), blue for <0, red for >=0 |
... |
optional arguments to 'FUN' |
A list with
size |
the absolute values of the difference to the position parameter (eg mean, median) |
col |
a character vector with 2 colors, each corresponding to positive or negative values |
Patrick Giraudoux, pgiraudo@univ-fcomte.fr
x<-rnorm(30) y<-rnorm(30) z<-val4symb(rnorm(30)) symbols(x,y,circle=z$size,inches=0.2,bg=z$col) z<-val4symb(scale(rnorm(30))) symbols(x,y,circle=z$size,inches=0.2,bg=z$col) z<-val4symb(rnorm(30),col=c("green","violet")) symbols(x,y,circle=z$size,inches=0.2,bg=z$col) z<-val4symb(rnorm(30),trim=0.025) symbols(x,y,circle=z$size,inches=0.2,bg=z$col) z<-val4symb(rnorm(30),median) symbols(x,y,circle=z$size,inches=0.2,bg=z$col) myfun<-function(x) 20 # passes an arbitrary constant z<-val4symb(1:30,myfun) symbols(x,y,circle=z$size,inches=0.2,bg=z$col)